1.
Phonograph record
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The groove usually starts near the periphery and ends near the center of the disc. The phonograph disc record was the medium used for music reproduction until late in the 20th century. It had co-existed with the cylinder from the late 1880s. Records retained the largest market share even when new formats such as compact cassette were mass-marketed, by the late 1980s, digital media, in the form of the compact disc, had gained a larger market share, and the vinyl record left the mainstream in 1991. The phonograph record has made a resurgence in the early 21st century –9.2 million records were sold in the U. S. in 2014. Likewise, in the UK sales have increased five-fold from 2009 to 2014, as of 2017,48 record pressing facilities remain worldwide,18 in the United States and 30 in other countries. The increased popularity of vinyl has led to the investment in new, only two producers of lacquers remains, Apollo Masters in California, USA, and MDC in Japan. Vinyl records may be scratched or warped if stored incorrectly but if they are not exposed to heat or broken. The large cover are valued by collectors and artists for the space given for visual expression, in the 2000s, these tracings were first scanned by audio engineers and digitally converted into audible sound. Phonautograms of singing and speech made by Scott in 1860 were played back as sound for the first time in 2008, along with a tuning fork tone and unintelligible snippets recorded as early as 1857, these are the earliest known recordings of sound. In 1877, Thomas Edison invented the phonograph, unlike the phonautograph, it was capable of both recording and reproducing sound. Despite the similarity of name, there is no evidence that Edisons phonograph was based on Scotts phonautograph. Edison first tried recording sound on a paper tape, with the idea of creating a telephone repeater analogous to the telegraph repeater he had been working on. The tinfoil was wrapped around a metal cylinder and a sound-vibrated stylus indented the tinfoil while the cylinder was rotated. The recording could be played back immediately, Edison also invented variations of the phonograph that used tape and disc formats. A decade later, Edison developed a greatly improved phonograph that used a wax cylinder instead of a foil sheet. This proved to be both a better-sounding and far more useful and durable device, the wax phonograph cylinder created the recorded sound market at the end of the 1880s and dominated it through the early years of the 20th century. Berliners earliest discs, first marketed in 1889, but only in Europe, were 12.5 cm in diameter, both the records and the machine were adequate only for use as a toy or curiosity, due to the limited sound quality
2.
Compact disc
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Compact disc is a digital optical disc data storage format released in 1982 and co-developed by Philips and Sony. The format was developed to store and play only sound recordings but was later adapted for storage of data. The first commercially available Audio CD player, the Sony CDP-101, was released October 1982 in Japan, standard CDs have a diameter of 120 millimetres and can hold up to about 80 minutes of uncompressed audio or about 700 MiB of data. The Mini CD has various diameters ranging from 60 to 80 millimetres, they are used for CD singles, storing up to 24 minutes of audio. At the time of the introduction in 1982, a CD could store much more data than a personal computer hard drive. By 2010, hard drives commonly offered as much space as a thousand CDs. In 2004, worldwide sales of audio CDs, CD-ROMs and CD-Rs reached about 30 billion discs, by 2007,200 billion CDs had been sold worldwide. In 2014, revenues from digital music services matched those from physical format sales for the first time. American inventor James T. Russell has been credited with inventing the first system to record information on an optical transparent foil that is lit from behind by a high-power halogen lamp. Russells patent application was first filed in 1966, and he was granted a patent in 1970, following litigation, Sony and Philips licensed Russells patents in the 1980s. The compact disc is an evolution of LaserDisc technology, where a laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s, although originally dismissed by Philips Research management as a trivial pursuit, the CD became the primary focus for Philips as the LaserDisc format struggled. In 1979, Sony and Philips set up a joint task force of engineers to design a new audio disc. After a year of experimentation and discussion, the Red Book CD-DA standard was published in 1980, after their commercial release in 1982, compact discs and their players were extremely popular. Despite costing up to $1,000, over 400,000 CD players were sold in the United States between 1983 and 1984, by 1988 CD sales in the United States surpassed those of vinyl LPs, and by 1992 CD sales surpassed those of prerecorded music cassette tapes. The success of the disc has been credited to the cooperation between Philips and Sony, who came together to agree upon and develop compatible hardware. The unified design of the disc allowed consumers to purchase any disc or player from any company. In 1974, L. However, due to the performance of the analog format
3.
DVD
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DVD is a digital optical disc storage format invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. The medium can store any kind of data and is widely used for software. DVDs offer higher capacity than compact discs while having the same dimensions. Pre-recorded DVDs are mass-produced using molding machines that physically stamp data onto the DVD, such discs are a form of DVD-ROM because data can only be read and not written or erased. Blank recordable DVD discs can be recorded using a DVD recorder. Rewritable DVDs can be recorded and erased many times, DVDs containing other types of information may be referred to as DVD data discs. The OED also states that in 1995, The companies said the name of the format will simply be DVD. Toshiba had been using the name ‘digital video disk’, but that was switched to ‘digital versatile disk’ after computer companies complained that it left out their applications, Digital versatile disc is the explanation provided in a DVD Forum Primer from 2000 and in the DVD Forums mission statement. There were several formats developed for recording video on optical discs before the DVD, Optical recording technology was invented by David Paul Gregg and James Russell in 1958 and first patented in 1961. A consumer optical disc data format known as LaserDisc was developed in the United States and it used much larger discs than the later formats. CD Video used analog video encoding on optical discs matching the established standard 120 mm size of audio CDs, Video CD became one of the first formats for distributing digitally encoded films in this format, in 1993. In the same year, two new optical disc formats were being developed. By the time of the launches for both formats in January 1995, the MMCD nomenclature had been dropped, and Philips and Sony were referring to their format as Digital Video Disc. Representatives from the SD camp asked IBM for advice on the system to use for their disc. Alan E. Bell, a researcher from IBMs Almaden Research Center, got that request and this group was referred to as the Technical Working Group, or TWG. On August 14,1995, an ad hoc group formed from five computer companies issued a release stating that they would only accept a single format. The TWG voted to both formats unless the two camps agreed on a single, converged standard. They recruited Lou Gerstner, president of IBM, to pressure the executives of the warring factions, as a result, the DVD specification provided a storage capacity of 4.7 GB for a single-layered, single-sided disc and 8.5 GB for a dual-layered, single-sided disc
4.
Santa Barbara, California
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Santa Barbara is the county seat of Santa Barbara County in the U. S. state of California. Situated on a section of coastline, the longest such section on the West Coast of the United States. Santa Barbaras climate is described as Mediterranean, and the city has been promoted as the American Riviera. The population of the county in 2010 was 423,895. In 2004, the sector accounted for fully 35% of local employment. Education in particular is well represented, with four institutions of learning on the south coast. The Santa Barbara Airport serves the city, as does Amtrak, U. S. Highway 101 connects the Santa Barbara area with Los Angeles to the southeast and San Francisco to the northwest. Behind the city, in and beyond the Santa Ynez Mountains, is the Los Padres National Forest, Channel Islands National Park and Channel Islands National Marine Sanctuary are located approximately 20 miles offshore. Evidence of human habitation of the area begins at least 13,000 years ago, an estimated 8,000 to 10,000 Chumash lived on the south coast of Santa Barbara County at the time of the first European explorations. Five Chumash villages flourished in the area, portuguese explorer João Cabrilho, sailing for the Kingdom of Spain, sailed through what is now called the Santa Barbara Channel in 1542, anchoring briefly in the area. In 1602, Spanish maritime explorer Sebastián Vizcaíno gave the name Santa Barbara to the channel, a land expedition led by Gaspar de Portolà visited in 1769, and Franciscan missionary Juan Crespi, who accompanied the expedition, named a large native town Laguna de la Concepcion. Cabrillos earlier name, however, is the one that has survived, the first permanent European residents were Spanish missionaries and soldiers under Felipe de Neve, who came in 1782 to build the Presidio. They were sent both to fortify the region against expansion by other such as England and Russia. Many of the Spaniards brought their families with them, and those formed the nucleus of the small town – at first just a cluster of adobes – that surrounded the Presidio, the Santa Barbara Mission was established on the Feast of Saint Barbara, December 4,1786. It was the tenth of the California Missions to be founded by the Spanish Franciscans and it was dedicated by Padre Fermín Lasuén, who succeeded Padre Junipero Serra as the second president and founder of the California Franciscan Mission Chain. The Mission fathers began the work of converting the native Chumash to Christianity. The Chumash laborers built a connection between the creek and the Santa Barbara Mission water system through the use of a dam. During the following decades, many of the natives died of such as smallpox
5.
Electronic music
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In general, a distinction can be made between sound produced using electromechanical means and that produced using electronic technology. Examples of electromechanical sound producing devices include the telharmonium, Hammond organ, purely electronic sound production can be achieved using devices such as the theremin, sound synthesizer, and computer. During the 1920s and 1930s, electronic instruments were introduced and the first compositions for instruments were composed. Musique concrète, created in Paris in 1948, was based on editing together recorded fragments of natural and industrial sounds, Music produced solely from electronic generators was first produced in Germany in 1953. Electronic music was created in Japan and the United States beginning in the 1950s. An important new development was the advent of computers for the purpose of composing music, algorithmic composition was first demonstrated in Australia in 1951. In America and Europe, live electronics were pioneered in the early 1960s, during the 1970s to early 1980s, the monophonic Minimoog became once the most widely used synthesizer at that time in both popular and electronic art music. In the 1980s, electronic music became dominant in popular music, with a greater reliance on synthesizers, and the adoption of programmable drum machines. Electronically produced music became prevalent in the domain by the 1990s. Contemporary electronic music includes many varieties and ranges from art music to popular forms such as electronic dance music. Today, pop music is most recognizable in its 4/4 form. At the turn of the 20th century, experimentation with emerging electronics led to the first electronic musical instruments and these initial inventions were not sold, but were instead used in demonstrations and public performances. The audiences were presented with reproductions of existing music instead of new compositions for the instruments, while some were considered novelties and produced simple tones, the Telharmonium accurately synthesized the sound of orchestral instruments. It achieved viable public interest and made progress into streaming music through telephone networks. Critics of musical conventions at the time saw promise in these developments, ferruccio Busoni encouraged the composition of microtonal music allowed for by electronic instruments. He predicted the use of machines in future music, writing the influential Sketch of a New Esthetic of Music, futurists such as Francesco Balilla Pratella and Luigi Russolo began composing music with acoustic noise to evoke the sound of machinery. They predicted expansions in timbre allowed for by electronics in the influential manifesto The Art of Noises, developments of the vacuum tube led to electronic instruments that were smaller, amplified, and more practical for performance. In particular, the theremin, ondes Martenot and trautonium were commercially produced by the early 1930s, from the late 1920s, the increased practicality of electronic instruments influenced composers such as Joseph Schillinger to adopt them
6.
Goldfrapp
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Goldfrapp are an English electronic duo from London, formed in 1999. The duo consists of Alison Goldfrapp and Will Gregory, despite favourable reviews and a short-listing for the Mercury Prize, their 2000 début studio album Felt Mountain did not chart highly. Goldfrapps second album Black Cherry, which incorporated glam rock and synthpop sounds into their music, was released in 2003, the album influenced the same dance-oriented sound of their third album Supernature. Supernature took Goldfrapps work further into dance music, and enjoyed chart success. The album produced three number-one US dance singles, and was nominated for Best Electronic/Dance Album at the 49th Grammy Awards, Head First also earned the duo their second Grammy Award nomination for Best Electronic/Dance Album in 2010. Goldfrapp released their critically acclaimed studio album, the folktronica-influenced Tales of Us. Alison Goldfrapp began her career performing with Dance Company Catherine Massin throughout the Netherlands during her early twenties. Afterwards, she attended Middlesex University where she studied Fine Art, in the early 1990s, Alison served as a guest vocalist with the electronic band Orbital and trip hop artist Tricky. In 1999, she was introduced to composer Will Gregory after he had listened to a version of the song Human. Gregory and Goldfrapp felt a connection and subsequently wrote the track Lovely Head. Following several months of calls, they decided to form a musical band. In August 1999, Goldfrapp signed a contract with London-based record label Mute Records. The pair began recording their album over a six-month period, beginning in September 1999. The recording process was difficult for Alison and Will, who found themselves alone and disturbed by the mice, Goldfrapps début album Felt Mountain was released in September 2000 and produced the singles Lovely Head, Utopia, Pilots and Human. The album featured Alison Goldfrapps vocals over cinematic soundscapes and is influenced by a variety of styles including cabaret, folk. The album was received by music critics, which Pitchfork Media described as simultaneously smarmy and seductive, yet elegant. It reached number 57 on the UK Albums Chart, and was certified gold by the British Phonographic Industry, in 2001, Felt Mountain was shortlisted for the Mercury Prize, an annual music prize awarded for the best British or Irish album from the previous year. The lyrics on Felt Mountain were written by Alison Goldfrapp and are abstract obsessional tales inspired by films, the song Oompa Radar was inspired by Roman Polanskis film Cul-de-sac, while Pilots describes travellers floating in the atmosphere above the earth
7.
Record producer
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A record producer or music producer oversees and manages the sound recording and production of a band or performers music, which may range from recording one song to recording a lengthy concept album. A producer has many roles during the recording process, the roles of a producer vary. The producer may perform these roles himself, or help select the engineer, the producer may also pay session musicians and engineers and ensure that the entire project is completed within the record companies budget. A record producer or music producer has a broad role in overseeing and managing the recording. Producers also often take on an entrepreneurial role, with responsibility for the budget, schedules, contracts. In the 2010s, the industry has two kinds of producers with different roles, executive producer and music producer. Executive producers oversee project finances while music producers oversee the process of recording songs or albums. In most cases the producer is also a competent arranger, composer. The producer will also liaise with the engineer who concentrates on the technical aspects of recording. Noted producer Phil Ek described his role as the person who creatively guides or directs the process of making a record, indeed, in Bollywood music, the designation actually is music director. The music producers job is to create, shape, and mold a piece of music, at the beginning of record industry, producer role was technically limited to record, in one shot, artists performing live. The role of producers changed progressively over the 1950s and 1960s due to technological developments, the development of multitrack recording caused a major change in the recording process. Before multitracking, all the elements of a song had to be performed simultaneously, all of these singers and musicians had to be assembled in a large studio and the performance had to be recorded. As well, for a song that used 20 instruments, it was no longer necessary to get all the players in the studio at the same time. Examples include the rock sound effects of the 1960s, e. g. playing back the sound of recorded instruments backwards or clanging the tape to produce unique sound effects. These new instruments were electric or electronic, and thus they used instrument amplifiers, new technologies like multitracking changed the goal of recording, A producer could blend together multiple takes and edit together different sections to create the desired sound. For example, in jazz fusion Bandleader-composer Miles Davis album Bitches Brew, producers like Phil Spector and George Martin were soon creating recordings that were, in practical terms, almost impossible to realise in live performance. Producers became creative figures in the studio, other examples of such engineers includes Joe Meek, Teo Macero, Brian Wilson, and Biddu
8.
Dance Club Songs
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The Dance Club Songs chart is a weekly national survey of the songs that are most popular in U. S. dance clubs. It is compiled by Billboard exclusively from playlists submitted by nightclub disc jockeys who must apply, the current number-one song on the Dance Club Songs chart for the issue dated April 15,2017, is Lick Me Up by Tony Moran and Dani Toro featuring Zhana Roiya. Dance Club Songs has undergone several incarnations since its inception in 1974, originally a top-ten list of tracks that garnered the largest audience response in New York City discothèques, the chart began on October 26,1974 under the title Disco Action. The chart went on to feature playlists from various cities around the country from week to week, Billboard continued to run regional and city-specific charts throughout 1975 and 1976 until the issue dated August 28,1976, when a thirty-position National Disco Action Top 30 premiered. During the first half of the 1980s the chart maintained eighty slots until March 16,1985 when the Disco charts were splintered and renamed, two charts appeared, Hot Dance/Disco, which ranked club play, and Hot Dance Music/Maxi-Singles Sales, which ranked 12-inch single sales. Only Hot Dance Club Songs still exists today and these stations are also a part of the electronically monitored panel that encompasses the Hot 100. Radio airplay is not limited to that counted on the Dance/Mix Show Airplay chart, during this time, Billboard rival publication Record World was the first to compile a dance chart which incorporated club play on a national level. Noted Billboard statistician Joel Whitburn has since adopted Record Worlds chart data from the weeks between March 29,1975 and August 21,1976 into Billboards club play history. For the sake of continuity, Record Worlds national chart is incorporated into both Whitburns Dance/Disco publication as well as the 1975 and 1976 number-ones lists, with the issue dated August 28,1976, Billboard premiered its own national chart and their data is used from this date forward. For the full list of all 100 All Time Top Dance Club Artists, both Enrique Iglesias and Dave Aude are tied with 14 number-ones on the chart, the most among male artists. Iglesias, however, is the male vocalist to accomplish this feat, while Aude is the only producer to achieve this milestone. Four acts have attained thirteen number-one songs, Whitney Houston, Kylie Minogue, Yoko Ono, Kylie Minogue became the first act to have two songs in the top three on March 5,2011. Her song Better than Today was number-one while Higher, a song by Taio Cruz on which Minogue features, was number three, the first 12-inch single made commercially available to the public was Ten Percent by Double Exposure in 1976. The first number one on Billboards Disco Action chart was Never Can Say Goodbye by Gloria Gaynor in 1974, the first number one on Billboards National Disco Action Top 30 was You Should Be Dancing by the Bee Gees in 1976. Beginning with the February 23,1991 issue, the dance chart became song specific, in all scenarios this was due to the tracks being included in film soundtrack albums. In 1978, four tracks from Thank God Its Friday, in 1980, madonna holds the record for the most chart hits, the most top-twenty hits, the most top-ten hits and the most total weeks at number one. The Trammps are the act to replace themselves at number one. The longest running number-ones on the Hot Dance Club Songs chart are Bad Luck by Harold Melvin & the Blue Notes2 in 1975, both entries spent eleven weeks in the top spot
9.
Single (music)
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In music, a single or record single is a type of release, typically a song recording of fewer tracks than an LP record, an album or an EP record. This can be released for sale to the public in a variety of different formats, in most cases, a single is a song that is released separately from an album, although it usually also appears on an album. Typically, these are the songs from albums that are released separately for promotional uses such as digital download or commercial radio airplay and are expected to be the most popular, in other cases a recording released as a single may not appear on an album. As digital downloading and audio streaming have become prevalent, it is often possible for every track on an album to also be available separately. Nevertheless, the concept of a single for an album has been retained as an identification of a heavily promoted or more popular song within an album collection. Despite being referred to as a single, singles can include up to as many as three tracks on them. The biggest digital music distributor, iTunes, accepts as many as three tracks less than ten minutes each as a single, as well as popular music player Spotify also following in this trend. Any more than three tracks on a release or longer than thirty minutes in total running time is either an Extended Play or if over six tracks long. The basic specifications of the single were made in the late 19th century. Gramophone discs were manufactured with a range of speeds and in several sizes. By about 1910, however, the 10-inch,78 rpm shellac disc had become the most commonly used format, the inherent technical limitations of the gramophone disc defined the standard format for commercial recordings in the early 20th century.26 rpm. With these factors applied to the 10-inch format, songwriters and performers increasingly tailored their output to fit the new medium, the breakthrough came with Bob Dylans Like a Rolling Stone. Singles have been issued in various formats, including 7-inch, 10-inch, other, less common, formats include singles on digital compact cassette, DVD, and LD, as well as many non-standard sizes of vinyl disc. Some artist release singles on records, a more common in musical subcultures. The most common form of the single is the 45 or 7-inch. The names are derived from its speed,45 rpm. The 7-inch 45 rpm record was released 31 March 1949 by RCA Victor as a smaller, more durable, the first 45 rpm records were monaural, with recordings on both sides of the disc. As stereo recordings became popular in the 1960s, almost all 45 rpm records were produced in stereo by the early 1970s
10.
Depeche Mode
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Depeche Mode /dᵻˌpɛʃˈmoʊd/ are an English electronic band that formed in 1980 in Basildon, Essex. The group consists of founders Dave Gahan, Martin Gore, Depeche Mode released their debut album Speak & Spell in 1981, bringing the band onto the British new wave scene. Original band member Vince Clarke, left the band after the release of the album, leaving the band as a trio to record A Broken Frame, released the following year. Gore took over the songwriting duties and, later in 1982, Alan Wilder officially joined the band to fill Clarkes spot. Depeche Mode have been a trio again since 1995, when Wilder left, the bands last albums of the 1980s, Black Celebration and Music for the Masses, established them as a dominant force on the mainstream electronic music scene. A highlight of this era was the concert at the Pasadena Rose Bowl. In the new decade, Depeche Mode released Violator, a mainstream success, now a trio once again, the band released Ultra in 1997, recorded at the height of Gahans near-fatal drug abuse, Gores alcoholism and seizures, and Fletchers depression. Depeche Mode have had 50 songs in the UK Singles Chart and thirteen top 10 albums in the UK chart, Q included the band in the list of the 50 Bands That Changed the World. Depeche Mode also rank number 98 on VH1s 100 Greatest Artists of All Time, Depeche Modes origins date to 1977, when schoolmates Vince Clarke and Andy Fletcher formed a Cure-influenced band called No Romance In China, with Clarke on vocals and guitar and Fletcher on bass. Fletcher would later recall, Why am I in the band and it was accidental right from the beginning. I was actually forced to be in the band, I played the guitar and I had a bass, it was a question of them roping me in. In 1979, Clarke played guitar in an Ultravox rip-off band, in 1978–79, Martin Gore played guitar in an acoustic duo, Norman and the Worms, with school friend Phil Burdett on vocals. In 1979, Marlow, Gore and friend Paul Redmond formed a band called the French Look, with Marlow on vocals/keyboards, Gore on guitar and Redmond on keyboards. In March 1980, Clarke, Gore and Fletcher formed a band called Composition of Sound, with Clarke on vocals/guitar, Gore on keyboards and Fletcher on bass. Soon after the formation of Composition of Sound, Clarke heard Wirral band Orchestral Manoeuvres in the Dark, along with OMD, other early influences included the Human League, Daniel Miller and Fad Gadget. Clarke and Fletcher switched to synthesisers, working odd jobs in order to buy or borrow the instruments from friends. Dave Gahan joined the band in 1980 after Clarke heard him perform at a scout hut jam session, singing a rendition of David Bowies Heroes. When explaining the choice for the new name taken from a French fashion magazine, Dépêche mode, Gore said, I like the sound of that
11.
Industrial rock
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Industrial rock is a musical genre that fuses industrial music and specific rock subgenres. Like most industrial subgenres, industrial rock is generally dark. Experimental 60s group Cromagnon are said to have one of the bands that helped foresee the birth of industrial rock. Specifically, their song Caledonia has been noted for its pre-industrial stomp, Industrial music was created in the mid- to late 1970s, amidst the punk rock revolution and disco fever. Prominent early industrial musicians include Throbbing Gristle, Cabaret Voltaire, NON, SPK, many other artists have been cited as influences such as Kraftwerk and Gary Numan and Tubeway Army as well as Einstürzende Neubauten. Many other musical performers were incorporating industrial-musical elements into a variety of musical styles, some post-punk performers developed styles parallel to industrial musics defining attributes. Pere Ubus debut, The Modern Dance, was described as industrial, so was San Franciscos Chrome, who mixed Jimi Hendrix, The Sex Pistols and tape music experiments, and Killing Joke, considered by Simon Reynolds as a post-punk version of heavy metal. According to Chris Connelly, Foetus is the instigator when it comes to the marriage of machinery to hardcore punk, the New York City band Swans were inspired by the local No Wave scene, as well as punk rock, noise music and the original industrial groups. Steve Albinis Big Black followed a path, while also incorporating American hardcore punk. Big Black has also been associated with post-hardcore and noise rock. Industrial rocks true commercial breakthrough took place with the rise of the metal bands, Ministry, Marilyn Manson. Records Nothing Records Industrial rock musical groups Industrial rock sales and awards List of industrial music bands Blush, concrete, Bulletproof, Invisible + Fried, My Life as a Revolting Cock. The Mojo Collection, The greatest albums of all time, rip it up and start again, Postpunk 1978-1984. Atari Teenage Riot,60 second wipe out
12.
A-side and B-side
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The terms A-side and B-side refer to the two sides of 78,45, and 33 1/3 rpm phonograph records, whether singles, extended plays, or long-playing records. Creedence Clearwater Revival had hits with both A-side and B-side releases, others took the opposite approach, producer Phil Spector was in the habit of filling B-sides with on-the-spot instrumentals that no one would confuse with the A-side. With this practice, Spector was assured that airplay was focused on the side he wanted to be the hit side, the earliest 10-inch,78 rpm, shellac records were single sided. Double-sided recordings, with one song on side, were introduced in Europe by Columbia Records. There were no record charts until the 1930s, and radio stations did not play recorded music until the 1950s, in this time, A-sides and B-sides existed, but neither side was considered more important, the side did not convey anything about the content of the record. The term single came into use with the advent of vinyl records in the early 1950s. At first, most record labels would randomly assign which song would be an A-side, under this random system, many artists had so-called double-sided hits, where both songs on a record made one of the national sales charts, or would be featured on jukeboxes in public places. As time wore on, however, the convention for assigning songs to sides of the record changed. By the early sixties, the song on the A-side was the song that the company wanted radio stations to play. It was not until 1968, for instance, that the production of albums on a unit basis finally surpassed that of singles in the United Kingdom. In the late 1960s stereo versions of pop and rock songs began to appear on 45s. The majority of the 45s were played on AM radio stations, by the early 1970s, double-sided hits had become rare. Album sales had increased, and B-sides had become the side of the record where non-album, non-radio-friendly, with the advent of cassette and compact disc singles in the late 1980s, the A-side/B-side differentiation became much less meaningful. With the decline of cassette singles in the 1990s, the A-side/B-side dichotomy became virtually extinct, as the dominant medium. However, the term B-side is still used to refer to the tracks or coupling tracks on a CD single. With the advent of downloading music via the Internet, sales of CD singles and other media have declined. B-side songs may be released on the record as a single to provide extra value for money. There are several types of material released in this way, including a different version, or, in a concept record
